## What are class boundaries?

Class boundaries are the data values which separate classes.

They are not part of the classes or the dataset.

The lower class boundary of a class is defined as the average of the lower limit of the class in question and the upper limit of the previous class..

## What is Class Mark formula?

Class size = Actual upper Limit – Actual lower limit, and Class Mark = Lower limit + Upper limit2.

## How do you find the class interval?

How can you calculate class interval? Class interval refers to the numerical width of any class in a particular distribution. It is defined as the difference between the upper-class limit and the lower class limit. Class Interval = Upper-Class limit – Lower class limit.

## What is the class width in statistics?

Class Width. The difference between the upper and lower boundaries of any class. The class width is also the difference between the lower limits of two consecutive classes or the upper limits of two consecutive classes. It is not the difference between the upper and lower limits of the same class. Class Mark (Midpoint)

## What is the class frequency?

Class frequency refers to the number of observations in each class; n represents the total number of observations in the entire data set. For the supermarket example, the total number of observations is 200. The relative frequency may be expressed as a proportion (fraction) of the total or as a percentage of the total.